(soon)
The following three quotes are from Ziman's (ed) "Technological Innovation as an Evolutionary Process" Cambridge Univ Press 2000
Page 49
"As the substance of this book amply demonstrates, cultural systems have non-biological structural features that are very difficult to incorporate plausible in a comprehensive computer model. But they often satisfy the general principles of selectionism, and may thus be expected to show the sort of evolutionary behavior observed in most (genetic algorithm) models that incorporate these principles, however schematically. On other words, by relating cultural phenomena directly to the properties of such models we may perhaps escape from the hand-waving rhetoric of the biological metaphor towards a more rigorous theory of cultural evolution."
Page 47
"Artificial Life models are genuinely non-biological. What is more, they can be set up so that they are quite free of specific bio-organic structural features, such as the distinction between genotype and phenotype. "
Page 17
" .. although the digital system of organising information is the most familiar to us, not all heritable information is digital. For examples, the information in a self-maintaining autocatalytic network or a cycle (for example neural network, or a chemical cycle) resides in the dynamic activity and the regulatory organization of this network or cycle. Such analogue information is not readily decomposable, the information can be thought of as residing in the dynamic organization of the system as a whole. Many heritable patterns of behavior in animals and man have an analogue, network, organization. Only a few human activities, especially some rationally controlled activities, can be manipulated in a combinatorial manner characteristic of digital information systems.